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Old 05-04-2016, 06:04 PM   #15
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Quote:
Originally Posted by Lets travel View Post
Lew, can you post some schematics on how to wire two 6 volt batteries in replacement for the Group 27 batteries.

Thanks
Easy: connect one 6V battery's NEGative (ground) terminal to the AS ground cable. Connect it's POSitive terminal to the second 6V battery's NEGative terminal. Connect the second 6V battery's POSitive terminal to the AS POSitive cable.
You're DONE.
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Old 05-04-2016, 06:09 PM   #16
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Make sure to reattach the positive wires from the Jack and brake switch to the proper positive post. Experience talking.
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Old 05-04-2016, 06:52 PM   #17
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Looks like you got your answer.


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Old 05-04-2016, 09:01 PM   #18
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Lew, I see on AM Solar's website that they expect to ship their Lithiums this month. As soon as my 4 Lifeline 6V batteries get chronically ill, I'll be converting. As I look at their site, it looks like this should be fairly straightforward with my 600W solar package. BTW, I continue to extoll the virtue of the Magnum MSH3012 that you convinced me to install!
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Old 05-04-2016, 09:19 PM   #19
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Lew, I see on AM Solar's website that they expect to ship their Lithiums this month. As soon as my 4 Lifeline 6V batteries get chronically ill, I'll be converting. As I look at their site, it looks like this should be fairly straightforward with my 600W solar package. BTW, I continue to extoll the virtue of the Magnum MSH3012 that you convinced me to install!
SEE.......told ya........told ya........

The lithiums that will be shipping are the Victron units. We (AM Solar) is having a difficult time sourcing the modular cells that we were using, and those are still not shippable, as the supply just isn't there. They are looking at a variety of replacements and hope to secure a reliable source for cells that perform to their specifications (you would be surprised at how many DON'T!) so that they can be used with confidence.

I'll be at the shop in a couple of weeks for the Victron immersion for my new system (200 A/H lithium, 2000 watt Multi-Plus hybrid, 100/50 solar charge controller and color monitor with all of the great interconnects that Victron is known for).

I'll do a thread about the stuff that I install in my Sprinter service van as soon as I'm done.
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Old 05-05-2016, 10:03 AM   #20
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Hello All,
I use a Honda 2000 to charge up my batteries when needed. I have considered a Zamp? 160 or 200 watt portable solar setup but have not yet pulled the trigger on it. One problem with built in solar I can see is many times our favorite camping spots have limited sun exposure so I think the portable would be the only way to go for us, at least for now. Of course the portable issue would increase theft possibilities so it would need to be taken down anytime we head out to see the sites. They do look to be easy up/down so should not be a big problem. The Honda is very quiet and have not yet had anyone complain but I use it in the proper time window anyway. The biggest gain with the twin 6 volters is the considerable extension is battery time vs the two grp 24 12 volt batteries. My 12v batteries sat in the trailer and were not charged properly it seems as they went bad just outside the lame 12 month original warr (12 months after purchase which made them 22 month old) and the Airstream store wasn't interested in taking responsibility for their lack of charging and it looks like they were charged up just before we bought it in July 2013...I did not know enough about batteries early on so wasn't insisting that they be replaced when we bought the trailer new at that time...I did add a spacer on top of the battery box and then remounted the lid/door on top of that plus I bought matching paint from Airstream and most would not notice it is even changed. I cut the plastic pan ends off and so my batteries will fit in there and then made a couple rubber pads up against the metal box to keep the batteries from touching/rubbing on the box. Have to reconfigure the wiring and bought proper copper ends and a crimping tool off Ebay and it looks great. You will also need a longer stud to secure the batteries and also need to make a heavy guage short connecting lead to go between the + and - posts. I bought Interstate 6 volters as we are a auto dealer and can buy them cheaper and their batteries do not have the auto type posts at least the ones they had in stock do not so that is why I reconfigured the connections. I also cut 1/4 inch off the trailer side of the metal steel frame lip (that the lid sets down on bottom edge) as it was a tight fit where the wires have to now go up another 1.5 inches and I was concerned the would eventually wear thru the insulation and short at that spot...just took out a 4 inch long x 1/4 wide spot to run the wire up and problem solved.
Russ
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Old 05-05-2016, 06:53 PM   #21
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Charging Trojan 6V batteries....

Quote:
Originally Posted by WestieHouse View Post
Yes, I recently installed a PD4655 and am considering 6V batteries. Are these compatible?
The absorption charge rate on these batteries is is between 14.1 and 14.7 volts. Your PD4655 is rated at 14.4 volts during the "boost" phase up to 90% of the battery capability and then to 13.6 volts for the remainder. I think you'd be fine but I'd call the Trojan Battery tech guys and ask. Here's the number for Trojan Battery Tech Support 800-423-6569 ext. 3045. The ideal float rate on these batteries is 13.2 volts and the PD4655 is rated the same for float.

I wish that I could help you more but I've only used my shore power a couple of times in the last 11 years as I have a solar set up with a controller that charges up to 14.8 volts depending on the temperature of the batteries. I've used Trojan Batteries in my previous camper and electric boat trolling. I'm of the opinion that they make an excellent product.
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Old 05-06-2016, 08:00 AM   #22
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DUDE how about a space or twelve between sentences.. this is hard to read. just do and edit and add parag spaces..

I does sound interesting for sure.

Quote:
Originally Posted by Rrroberts40 View Post
Hello All,
I use a Honda 2000 to charge up my batteries when needed. I have considered a Zamp? 160 or 200 watt portable solar setup but have not yet pulled the trigger on it. One problem with built in solar I can see is many times our favorite camping spots have limited sun exposure so I think the portable would be the only way to go for us, at least for now. Of course the portable issue would increase theft possibilities so it would need to be taken down anytime we head out to see the sites. They do look to be easy up/down so should not be a big problem. The Honda is very quiet and have not yet had anyone complain but I use it in the proper time window anyway. The biggest gain with the twin 6 volters is the considerable extension is battery time vs the two grp 24 12 volt batteries. My 12v batteries sat in the trailer and were not charged properly it seems as they went bad just outside the lame 12 month original warr (12 months after purchase which made them 22 month old) and the Airstream store wasn't interested in taking responsibility for their lack of charging and it looks like they were charged up just before we bought it in July 2013...I did not know enough about batteries early on so wasn't insisting that they be replaced when we bought the trailer new at that time...I did add a spacer on top of the battery box and then remounted the lid/door on top of that plus I bought matching paint from Airstream and most would not notice it is even changed. I cut the plastic pan ends off and so my batteries will fit in there and then made a couple rubber pads up against the metal box to keep the batteries from touching/rubbing on the box. Have to reconfigure the wiring and bought proper copper ends and a crimping tool off Ebay and it looks great. You will also need a longer stud to secure the batteries and also need to make a heavy guage short connecting lead to go between the + and - posts. I bought Interstate 6 volters as we are a auto dealer and can buy them cheaper and their batteries do not have the auto type posts at least the ones they had in stock do not so that is why I reconfigured the connections. I also cut 1/4 inch off the trailer side of the metal steel frame lip (that the lid sets down on bottom edge) as it was a tight fit where the wires have to now go up another 1.5 inches and I was concerned the would eventually wear thru the insulation and short at that spot...just took out a 4 inch long x 1/4 wide spot to run the wire up and problem solved.
Russ
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Old 05-06-2016, 12:09 PM   #23
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$$$Lithium Batteries$$$$$$

Quote:
Originally Posted by Ziggy2 View Post
The absorption charge rate on these batteries is is between 14.1 and 14.7 volts. Your PD4655 is rated at 14.4 volts during the "boost" phase up to 90% of the battery capability and then to 13.6 volts for the remainder. I think you'd be fine but I'd call the Trojan Battery tech guys and ask. Here's the number for Trojan Battery Tech Support 800-423-6569 ext. 3045. The ideal float rate on these batteries is 13.2 volts and the PD4655 is rated the same for float.

I wish that I could help you more but I've only used my shore power a couple of times in the last 11 years as I have a solar set up with a controller that charges up to 14.8 volts depending on the temperature of the batteries. I've used Trojan Batteries in my previous camper and electric boat trolling. I'm of the opinion that they make an excellent product.
I'm speaking of Trojan flooded batteries. Lithium Ion batteries are expensive and probably not compatible with your charge. Do your research on the batteries and your budget.
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Old 05-23-2016, 05:50 PM   #24
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Sorry if this is a basic question - but what is the advantage of having two 6v batteries vs two 12v? It seems the math favors the two 12v - although I do know that the 6vs drain slower. Also, would the 6v have to be wired in series in order to be used with a portable solar suitcase?
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Old 05-24-2016, 07:53 AM   #25
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UH UH UH me me,, holding hand up, waving..

Ever look in a elec golf cart under the seat? most use 8 volt batteries, 6 of them to provide 48 volts for the elec motor to power the cart.

now think about a usual golf course, that is if you play golf, most are not flat and the car it self weighs 3-400 lbs plus two person average weight of 200 each plus to golf bags average weight of 20-35 lbs. So you have 400 + 400 (+-) + 60 = 860 lbs.. 4- 12 volt batteries would only last maybe ONE round where as the 6 and 8 volt batteries having larger cells, more lead etc, will last several rounds before failing.

check the weight of one 6 volt battery and one 12 volt battery to find you answer.. more weight = more available power.

a typical group 27 battery 12v is 55 lbs,, a trojan t-105 6 volt is 62 lbs. x 2= 124 lbs of batteries, wired in series, to provide 12 v.

in batteries bigger is better.

Quote:
Originally Posted by tjwoods1 View Post
Sorry if this is a basic question - but what is the advantage of having two 6v batteries vs two 12v? It seems the math favors the two 12v - although I do know that the 6vs drain slower. Also, would the 6v have to be wired in series in order to be used with a portable solar suitcase?
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Old 11-20-2016, 03:52 PM   #26
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I'm very interested in replacing my 12v group 24 batteries with a pair of Trojan T105 RE's. What would be the easiest way to fit them?

I've read that some AS's have come from the factory with the "T105 modification", so I suppose they have a replacement battery box... and if they do, that would probably be easy, but expensive.

I like your solution with the aluminum C - shaped rails, but don't know where to source them, much less where or how I could cut them to size.

If the fit is close, would it be possible to remove the battery box cover, install some heavy rubber gaskets, (like car door seals), and then re-install the box cover with longer screws or bolts?

Glenn
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Old 11-20-2016, 04:15 PM   #27
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Battery Box Extender

Quote:
Originally Posted by Glenn T View Post
I'm very interested in replacing my 12v group 24 batteries with a pair of Trojan T105 RE's. What would be the easiest way to fit them?

I've read that some AS's have come from the factory with the "T105 modification", so I suppose they have a replacement battery box... and if they do, that would probably be easy, but expensive.

I like your solution with the aluminum C - shaped rails, but don't know where to source them, much less where or how I could cut them to size.

If the fit is close, would it be possible to remove the battery box cover, install some heavy rubber gaskets, (like car door seals), and then re-install the box cover with longer screws or bolts?

Glenn
See "Battery box extender to accommodate the larger 6 volt batteries."
https://www.facebook.com/VinniesNorthbayAirstreamRepair/photos/?tab=album&album_id=1104542062955224


http://www.vinniesairstream.com/part...ndealerid3366/

It looks like a phone call is needed in order to purchase this extender, which I would like for my two Trojan 12-volt batteries that are just barely able to fit in the Airstream battery box even after removing the bottom plastic tray.
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Old 11-20-2016, 07:47 PM   #28
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Quote:
Originally Posted by MaineStreamer View Post
See "Battery box extender to accommodate the larger 6 volt batteries."
https://www.facebook.com/VinniesNorthbayAirstreamRepair/photos/?tab=album&album_id=1104542062955224


http://www.vinniesairstream.com/part...ndealerid3366/

It looks like a phone call is needed in order to purchase this extender, which I would like for my two Trojan 12-volt batteries that are just barely able to fit in the Airstream battery box even after removing the bottom plastic tray.
Hay Marty, thanks for the links? This is a great way to go for those with limited fab tools. I wonder if it is 2" channel?

I've been thinking about the 12v>6v change but since the Int 24's (OEM) are still fine, I have been focusing on the tires for the toad. (Either the Mich Defender 16's or maybe the Nokian 15's).

But then again if the price to buy parts is reasonable, maybe do the box mod now and the batt's later? My concern is the swing arc of the lid now 2" higher. Maybe a double hinge would be needed. Please post on the 20's thread if you jump in.

Bob
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